Keeping Reloads Looking GOOD!

Ok...I have to ask....
When I reload it usually load about 100 rounds... Just because I get in a groove, I want to keep variables down and keep my consistency up..
ANYWAY... SO... I have had a bunch of rounds loaded in the garage and I dug the out the other day for a shooting session and they were kind of tarnished and not as pretty as when they come out of the tumbler...